I have a Briggs 22 horse vtwin every so often it throws push rods, I just replaced them and now it won't start it will turn but it doesn't seem to be getting any gas I have blown through the fuel lines they are clear. I have replaced the fuel filter and pump and air filter and battery and all it does is spin I also did an oil change and replaced the park plugs the only thing I can figure there isn't any compression to get the fuel flowing there is a crack in the top of the fuel tank not sure if that would affect anything, I was wondering if anyone had some suggestions for me